CN104498099B - A kind of gasifier nozzle and its application method, the gasification furnace containing it - Google Patents
A kind of gasifier nozzle and its application method, the gasification furnace containing it Download PDFInfo
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- CN104498099B CN104498099B CN201410804533.5A CN201410804533A CN104498099B CN 104498099 B CN104498099 B CN 104498099B CN 201410804533 A CN201410804533 A CN 201410804533A CN 104498099 B CN104498099 B CN 104498099B
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- Prior art keywords
- shower nozzle
- bottom face
- inner ring
- nozzle
- throat
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging devices for entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
The invention discloses a kind of gasifier nozzle and its application method, the gasification furnace containing it.The gasifier nozzle is including the central jets being coaxially disposed, an inner ring shower nozzle, a middle ring shower nozzle, an outer shroud shower nozzle and is located at the outermost cooling-part of burner spout；The central jets, inner ring shower nozzle, middle ring shower nozzle and outer shroud shower nozzle setting gradually from inside to outside, form a central passage, an inner ring channel, a middle ring passage and an outer ring channel；The spout end of the central passage is straight section of channel；The outer angle of throat α of the inner ring shower nozzle, the outer angle of throat β of the middle ring shower nozzle, the outer angle of throat γ of the outer shroud shower nozzle meet α ＞ β ＞ γ, and the outer angle of throat α of the inner ring shower nozzle is 60 80 °.The gasifier nozzle long lifespan that the present invention is provided, substantially increases the security of gasification furnace.
Description
Technical field
The present invention relates to a kind of gasifier nozzle and its application method, the gasification furnace containing it.
Background technology
Gasification refers to that organic matter in specific equipment (gasification furnace), makes organic matter and gasification under certain temperature and pressure
Series of chemical occurs for agent (such as steam, air or oxygen), is that synthesis gas (mainly contains CO and H by organic matter transformation2
Deng fuel gas) process.Synthesis gas is mainly used in synthesis ammonia, synthesizing methanol, synthetic natural gas, refinery hydrogen preparing, blast furnace reduction
Smelt iron in chemical industry metallurgical industry, combined cycle generating unit and industrial and domestic gas field.
Entrained flow bed gasification technology is the principle for utilizing jet entrainment in hydrodynamics, and liquid or particle are led to gasifying medium
Nozzle at high speeds is crossed to spray into gasification furnace.Jet causes the turbulent flow of volume suction and height to enhance the mixing in gasification furnace, is conducive to gas
Change the abundant progress of reaction.Faster, temperature is higher for the processing speed of entrained flow bed gasification technology, and organic matter decomposes more complete, more
It is environmental clean.Entrained flow bed gasification technology high temperature, high pressure, the main flow direction that gasification technology development is represented the features such as mix.It is existing
The wet feeding gasification technology for the engineering construction having mainly have Texaco (GE) gasification furnace, multi-nozzle opposition gasifier,
Tsing-Hua University's stove etc..
Mixed effect influence of the burner on liquid fuel and gasifying agent is huge, is one of key equipment.Due to air flow bed gas
Change in-furnace temperature more than 1000 DEG C, flame temperature is more than 1600 DEG C, pressure height (1-8MPa), so the requirement to burner is very
It is high.Current burner exist flame zone apart from burner end it is excessively near the problem of, easily occur burner end ablation, cause the burner life-span to become
It is short that (liquid fuel gasification burner typically uses and is accomplished by within 3 months or so parking maintenance in practical application, or even operation deficiency occurs
1 month situation with regard to ablation burner), trigger the serious consequences such as leakage.Moreover, the outermost layer passage of some burners in the prior art
High speed oxygen is walked, can be with the synthesis gas (CO+H in gasification furnace2) react, release amount of heat causes burner end face temperature mistake
Height, produces ablation phenomen, can also shorten the life-span of burner.
Therefore, in the urgent need to atomization is excellent, long-life liquid fuel gasification burner is long to meet system in practice
Cycle stability safe operation.
The content of the invention
The technical problem to be solved in the present invention be in order to overcome it is of the prior art be used for gasification furnace in burner in high temperature
Lower short life, defect the problems such as leakage may be triggered there is provided a kind of completely new gasifier nozzle and its application method, contain
Its gasification furnace.Gasifier nozzle long lifespan of the present invention, substantially increases the security of gasification furnace.
The present invention provides a kind of gasifier nozzle, including be coaxially disposed a central jets, an inner ring shower nozzle, ring spray in one
Head, an outer shroud shower nozzle and it is located at the outermost cooling-part of burner spout；The central jets, inner ring shower nozzle, middle ring shower nozzle
With outer shroud shower nozzle setting gradually from inside to outside, a central passage, an inner ring channel, a middle ring passage and an outer shroud are formed logical
Road；The spout end of the central passage is straight section of channel；Outside the outer angle of throat α of the inner ring shower nozzle, the middle ring shower nozzle
Angle of throat β, the outer angle of throat γ of the outer shroud shower nozzle meets α ＞ β ＞ γ, and the outer angle of throat α of the inner ring shower nozzle is 60-80 °.
In the present invention, it is preferred that the outer angle of throat α of the inner ring shower nozzle meets 65 ° of ＜ α≤75 °, the middle ring shower nozzle
Outer angle of throat β is 50-70 °, and the outer angle of throat γ of the outer shroud shower nozzle is 40-60 °.
In the present invention, more preferably, the outer angle of throat β of the middle ring shower nozzle meets 55 ° of ＜ β≤65 °, the outer shroud shower nozzle
Outer angle of throat γ meets 45 ° of ＜ γ≤55 °.
In the present invention, it is preferred that the bottom face of the central jets, the bottom face of the inner ring shower nozzle, the middle ring spray
The bottom face of head is arranged relative to the bottom face of the outer shroud shower nozzle in gradual retraction, i.e. the bottom face of the central jets
The bottom face of indent x, the inner ring shower nozzle relative to the bottom face of the outer shroud shower nozzle are relative to the outer shroud shower nozzle
The bottom face of the indent y of bottom face and the middle ring shower nozzle is met relative to the indent z of the bottom face of the outer shroud shower nozzle
Following condition：X ＞ y ＞ z, are more preferably x≤40mm, y≤10mm, z≤5mm.
The present invention also provides the application method of above-mentioned gasifier nozzle, in use, gasifying agent be passed through the central passage and
Middle ring passage, liquid fuel is passed through the inner ring channel and outer ring channel.
In the present invention, the gasifying agent is the gasifying agent commonly used in the art in gasification furnace, preferably steam, air, richness
One or more in oxygen air and pure oxygen.
In the present invention, the liquid fuel is the liquid fuel commonly used in the art in gasification furnace, and liquid fuel is mainly contained
Hydrocarbon or its mixture, as long as meeting pumpable and pipeline transportation.
Wherein, the liquid fuel is preferably liquid fuel and/or fuel slurry；The liquid fuel is crude oil, vapour
One or more in oil, kerosene, diesel oil, fuel oil, shale oil and artificial petroleum；The fuel slurry is by liquid and solid
Grain is mixed, and the liquid is the one or more in water, oily substance, sanitary sewage, workshop-sink, the solid particle
For the one or more in coal, petroleum coke, biomass, solid waste.
In the present invention, it is preferred that the exit velocity when gasifying agent is sprayed by central passage is 30-150m/s；Institute
It is 80-200m/s to state exit velocity when gasifying agent is sprayed by middle ring passage.
In the present invention, it is preferred that the volume for being passed through the gasifying agent of the central passage accounts for the 10- of the gasifying agent cumulative volume
50%.
In the present invention, it is preferred that the exit velocity when liquid fuel is sprayed by the inner ring channel is 1-30m/
s；The exit velocity when liquid fuel is sprayed by the outer ring channel is 1-30m/s.
In the present invention, it is preferred that the volume for being passed through the liquid fuel of the inner ring channel accounts for the liquid fuel cumulative volume
50-95%.
In the present invention, it is preferred that when the gasifying agent is oxygen, and the liquid fuel is coal slurry, the gasifying agent leads to
It is 110-140m/s, the exit velocity when gasifying agent is sprayed by middle ring passage to cross exit velocity when central passage sprays
For 110-140m/s；The exit velocity when liquid fuel is sprayed by the inner ring channel is 7-10m/s, the liquid combustion
Exit velocity when material is sprayed by the outer ring channel is 2-3m/s.In above-mentioned preferred version, the coal slurry refers to that concentration is
50-70wt% water-coal-slurry, the percentage is the mass percent of coal in water-coal-slurry.
The gasifier nozzle of the present invention, outermost outer ring channel walks liquid fuel when using, and passes through said structure
The gasifying agents such as the oxygen that characteristic effectively sprays middle ring shower nozzle and central jets are separated with the synthesis gas in gasification furnace, make the two
It is catalytic to be located away from burner, burner end face temperature is effectively reduced, so as to greatly prolong the life-span of burner.And use
When, by especially screening the flow velocity and flow of gasifying agent or liquid fuel in each passage, good cooperation is generally formed,
Preferably extend the life-span of burner.
The gasifier nozzle of the present invention is applicable pressure limit and is not more than 20MPa (gauge pressure).
Present invention also offers a kind of gasification furnace for including above-mentioned gasifier nozzle.
On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, and produce each preferable reality of the present invention
Example.
The positive effect of the present invention is：Gasifier nozzle long lifespan of the present invention, is made by application method of the present invention
Used time liquid fuel and gasifying agent obtain good mixed effect, and the security of gasification furnace can be improved on the whole.
Brief description of the drawings
Fig. 1 is the structural representation of the gasifier nozzle of embodiments of the invention 1.
Fig. 2 is the oral structure enlarged diagram of the gasifier nozzle of embodiments of the invention 1.
Embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to described reality
Apply among a scope.The experimental method of unreceipted actual conditions in the following example, conventionally and condition, or according to business
Product specification is selected.
Embodiment 1
As shown in figure 1, in the present embodiment, described gasifier nozzle includes a central jets 5, the inner ring being coaxially disposed
Shower nozzle 6, a middle ring shower nozzle 7, an outer shroud shower nozzle 8 and it is located at the outermost cooling-part 9 of burner spout；The central jets 5,
Inner ring shower nozzle 6, middle ring shower nozzle 7 and outer shroud shower nozzle 8 setting gradually from inside to outside, formed a central passage 1, an inner ring channel 2,
One middle ring passage 3 and an outer ring channel 4；The spout end of the central passage 1 is straight section of channel；Outside the inner ring shower nozzle 6
Angle of throat α is 70 °, and the outer angle of throat β of the middle ring shower nozzle 7 is 60 °, and the outer angle of throat Y of the outer shroud shower nozzle 8 is 50 °.
As shown in Fig. 2 the bottom face of the central jets 5, the bottom face of the inner ring shower nozzle 6, the middle ring shower nozzle 7
Bottom face is arranged relative to the bottom face of the outer shroud shower nozzle 8 in gradual retraction, i.e. the bottom face phase of the central jets 5
The bottom face of indent x, the inner ring shower nozzle 6 for the bottom face of the outer shroud shower nozzle 8 are relative to the outer shroud shower nozzle 8
The bottom face of the indent y of bottom face and the middle ring shower nozzle 7 is relative to the indent z of the bottom face of the outer shroud shower nozzle 8：
X=40mm, y=10mm, z=5mm.During the gasifier nozzle provided using the present embodiment, gasifying agent is passed through the central passage 1
With middle ring passage 3, liquid fuel is passed through the inner ring channel 2 and outer ring channel 4.In the present embodiment, the gasifying agent is volume
Concentration is 98% pure oxygen, and the liquid fuel is 61wt% water-coal-slurry.
The parameter related to gasifier nozzle is as follows：Water-coal-slurry (50 DEG C), the water-coal-slurry flow 45.87m of inner ring channel 23/
H, the water-coal-slurry flow 11.47m of outer ring channel 43/ h (the 20% of total amount)；Pure oxygen (25 DEG C), the oxygen flow of central passage 1
4873Nm3/ h (the 18% of total amount), the oxygen flow 22199Nm of middle ring passage 33/h；Gasifier operation pressure is 6.5MPa (G).
The oxygen velocity of central passage 1：126.74m/s；The water-coal-slurry speed of inner ring channel 2：8.38m/s；Middle ring passage 3
Oxygen velocity：122.14m/s；The water-coal-slurry speed of outer ring channel 4：2.36m/s.
Gasifier nozzle described in the present embodiment is installed on after gasification furnace disclosed in patent 98110616.1, when fuel is
When concentration is 61wt% water-coal-slurry, the pure oxygen using 98% (v/v) is gasifying agent, and gasification result is effective gas component in synthesis gas
84% (v/v) is reached, lime-ash carbon residue is 3wt%, and the continuous service life of burner fully met coal water slurry gasification length week up to 1 year
The requirement of phase stable safe operation.
Embodiment 2~5
Embodiment 2~5 (is specifically shown in Table 1) in addition to the structural parameters and the difference of embodiment 1 of gasifier nozzle, remaining
Device parameter is same as Example 1 with reaction condition, and final test effect is also similar to Example 1, and gasifier nozzle is used
Long lifespan, substantially increases the security of gasification furnace.
The structural parameters of the gasifier nozzle of the embodiment 2~5 of table 1
Embodiment 6~9
(the tool in addition to each technological parameter during the use of gasifier nozzle and the difference of embodiment 1 of embodiment 6~9
2) body is shown in Table, and remaining device parameter is same as Example 1 with reaction condition, and final test effect is also similar to Example 1,
Gasifier nozzle service life is long, substantially increases the security of gasification furnace.
The technological parameter of the gasifier nozzle of the embodiment 6~9 of table 2
Claims (10)
1. a kind of gasifier nozzle, it is characterised in that it includes the central jets, an inner ring shower nozzle, a middle ring being coaxially disposed
Shower nozzle, an outer shroud shower nozzle and it is located at the outermost cooling-part of burner spout；The central jets, inner ring shower nozzle, middle ring spray
Head and outer shroud shower nozzle setting gradually from inside to outside, form a central passage, an inner ring channel, a middle ring passage and an outer shroud logical
Road；The spout end of the central passage is straight section of channel；The inner ring channel and the outer ring channel are used to be passed through liquid combustion
Material；The outer angle of throat α of the inner ring shower nozzle, the outer angle of throat β of the middle ring shower nozzle, the outer angle of throat γ of the outer shroud shower nozzle expire
Sufficient α ＞ β ＞ γ, the outer angle of throat α of the inner ring shower nozzle is 60-80 °.
2. gasifier nozzle as claimed in claim 1, it is characterised in that the outer angle of throat α of the inner ring shower nozzle meets 65 ° of ＜
α≤75 °, the outer angle of throat β of the middle ring shower nozzle is 50-70 °, and the outer angle of throat γ of the outer shroud shower nozzle is 40-60 °；It is described
The bottom face of central jets, the bottom face of the inner ring shower nozzle, the bottom face of the middle ring shower nozzle are relative to the outer shroud shower nozzle
Bottom face in it is gradual retraction arrangement, i.e. the bottom face of the central jets is relative to the bottom face of the outer shroud shower nozzle
Indent x, bottom face of the bottom face relative to the outer shroud shower nozzle of the inner ring shower nozzle indent y and the middle ring shower nozzle
The indent z of bottom face of the bottom face relative to the outer shroud shower nozzle meet following condition：X ＞ y ＞ z.
3. gasifier nozzle as claimed in claim 2, it is characterised in that the outer angle of throat β of the middle ring shower nozzle meets 55 ° of ＜
β≤65 °, the outer angle of throat γ of the outer shroud shower nozzle meets 45 ° of ＜ γ≤55 °；The bottom face of the central jets is relative to institute
State the indent x of the bottom face of outer shroud shower nozzle, bottom face of the bottom face relative to the outer shroud shower nozzle of the inner ring shower nozzle
The bottom face of indent y and the middle ring shower nozzle is met relative to the indent z of the bottom face of the outer shroud shower nozzle：X≤40mm,
Y≤10mm, z≤5mm.
4. the application method of a kind of gasifier nozzle as described in any one of claims 1 to 3, it is characterised in that in use, gas
Agent is passed through the central passage and middle ring passage, and liquid fuel is passed through the inner ring channel and outer ring channel.
5. application method as claimed in claim 4, it is characterised in that the outlet when gasifying agent is sprayed by central passage
Flow velocity is 30-150m/s；The exit velocity when gasifying agent is sprayed by middle ring passage is 80-200m/s.
6. application method as claimed in claim 4, it is characterised in that the volume for being passed through the gasifying agent of the central passage accounts for institute
State the 10-50% of gasifying agent cumulative volume.
7. application method as claimed in claim 4, it is characterised in that when the liquid fuel is sprayed by the inner ring channel
Exit velocity be 1-30m/s；The exit velocity when liquid fuel is sprayed by the outer ring channel is 1-30m/s.
8. application method as claimed in claim 4, it is characterised in that the volume for being passed through the liquid fuel of the inner ring channel is accounted for
The 50-95% of the liquid fuel cumulative volume.
9. application method as claimed in claim 4, it is characterised in that the applicable pressure limit of the gasifier nozzle is not more than
20MPa。
10. a kind of gasification furnace of the gasifier nozzle comprising as described in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804533.5A CN104498099B (en) | 2014-12-18 | 2014-12-18 | A kind of gasifier nozzle and its application method, the gasification furnace containing it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410804533.5A CN104498099B (en) | 2014-12-18 | 2014-12-18 | A kind of gasifier nozzle and its application method, the gasification furnace containing it |
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| CN104498099A CN104498099A (en) | 2015-04-08 |
| CN104498099B true CN104498099B (en) | 2017-08-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105219436A (en) * | 2015-10-30 | 2016-01-06 | 新奥科技发展有限公司 | A kind of supercritical water gasification nozzle, apparatus and method |
| CN105271115B (en) * | 2015-11-25 | 2018-06-26 | 华东理工大学 | A kind of gaseous hydrocarbons stove burner |
| CN105731376B (en) * | 2016-01-12 | 2018-10-02 | 华东理工大学 | A kind of partial oxidation technology burner and its application |
| CN111732974A (en) * | 2019-03-25 | 2020-10-02 | 华东理工大学 | Gasification burner, gasification furnace and gasification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1303192C (en) * | 2005-04-13 | 2007-03-07 | 华东理工大学 | Fabricating muzzle for synthesis gas through partial oxidizing solid substance containing carbon, and industrial application |
| CN100535517C (en) * | 2007-07-12 | 2009-09-02 | 华东理工大学 | Multi-channel liquid stage fuel partial oxidation generating synthesis gas burner and uses thereof |
| DE102010004787B4 (en) * | 2010-01-16 | 2014-02-13 | Lurgi Gmbh | Process and burner for the production of synthesis gas |
| US9079199B2 (en) * | 2010-06-14 | 2015-07-14 | General Electric Company | System for increasing the life of fuel injectors |
| CN201850256U (en) * | 2010-10-13 | 2011-06-01 | 神华集团有限责任公司 | Process burner and system for gasifying water coal slurry |
| CN102260533A (en) * | 2011-06-30 | 2011-11-30 | 神华集团有限责任公司 | Gasifying nozzle |
| CN202647752U (en) * | 2012-05-15 | 2013-01-02 | 上海锅炉厂有限公司 | Load-controllable multi-channel liquid fuel gasification burner |
| CN204490822U (en) * | 2014-12-18 | 2015-07-22 | 华东理工大学 | A kind of gasifier nozzle and containing its vapourizing furnace |
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Application publication date: 20150408 Assignee: JIANGSU AEROSPACE HEWLETT ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Assignor: EAST CHINA University OF SCIENCE AND TECHNOLOGY|SHANGHAI YINENG GAS TECHNOLOGY Co.,Ltd. Contract record no.: X2021980002028 Denomination of invention: The utility model relates to a burner of a gasifier, a method for using the burner and a gasifier containing the burner Granted publication date: 20170804 License type: Common License Record date: 20210324 |